Function unlock

src/modules/pwdCache.js:243–254

({key, password, message})

 * @return {Promise<openpgp.key.Key, Error>} return the unlocked key
 */
export async function unlock({key, password, message}) {
  const unlockedKey = await unlockKey(key, password);
  const options = {key: unlockedKey, password};
  if (message) {
    options.reservedOperations = getReservedOperations({key: unlockedKey, message});
  }
  if (active) {
    // set unlocked key in cache
    set(options);
  }
  return unlockedKey;
}

async function unlockKey(privKey, passwd) {
  try {